:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1d2129;
  --muted: #86909c;
  --border: #e5e6eb;
  --primary: #3c5bd6;
  --primary-text: #ffffff;
  /* 国内习惯：红涨绿跌，利好用红、利空用绿 */
  --bull: #d92d20;
  --bull-bg: #fdecea;
  --bear: #12a150;
  --bear-bg: #e8f7ee;
  --neutral-bg: #f2f3f5;
  --alert: #f59e0b;
  --alert-bg: #fff8e6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17181c; --card: #212228; --text: #e6e8eb; --muted: #8b919a; --border: #33353d;
    --primary: #6d86f0; --bull: #ff6b5e; --bull-bg: #3a2220; --bear: #3ccf7f; --bear-bg: #1d3328;
    --neutral-bg: #2a2c33; --alert: #fbbf24; --alert-bg: #3a3020;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--bull); min-height: 1em; font-size: 13px; }
.warn { color: var(--alert); }
h2 { font-size: 16px; margin: 0; }
a { color: var(--primary); }

button {
  font: inherit; border: 1px solid var(--border); background: var(--card); color: var(--text);
  padding: 6px 14px; border-radius: 6px; cursor: pointer;
}
button:hover { border-color: var(--primary); }
button.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
button.ghost { border-color: transparent; background: transparent; }
button:disabled { opacity: .5; cursor: default; }
input, textarea, select {
  font: inherit; width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--card); color: var(--text);
}
textarea { resize: vertical; }
label { display: block; margin: 10px 0; font-size: 13px; color: var(--muted); }
label input, label textarea, label select { margin-top: 4px; color: var(--text); }

/* 登录 */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth-card {
  width: 100%; max-width: 360px; background: var(--card); padding: 32px; border-radius: 12px;
  display: flex; flex-direction: column; gap: 12px; border: 1px solid var(--border);
}
.auth-card h1 { margin: 0; }

/* 主界面 */
main { max-width: 1080px; margin: 0 auto; padding: 0 16px 48px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px;
  padding: 16px 0; position: sticky; top: 0; background: var(--bg); z-index: 5;
}
.brand { font-weight: 700; font-size: 18px; }
.topbar-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.section-head { display: flex; justify-content: space-between; align-items: center; margin: 16px 0 8px; }

/* 今日概览 */
.digest {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px;
}
.digest-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
.digest-overview { margin: 0 0 8px; font-size: 15px; }
.digest-row {
  display: grid; grid-template-columns: 7em auto 1fr; gap: 10px; align-items: baseline;
  padding: 7px 0; border-top: 1px dashed var(--border); cursor: pointer;
}
.digest-row:hover .alert-company { text-decoration: underline; }
.digest-badges { display: flex; gap: 4px; white-space: nowrap; }
.reflections { margin-top: 10px; padding: 10px 12px; background: var(--neutral-bg); border-radius: 8px; }
.reflections ol { margin: 6px 0 0; padding-left: 20px; }
.reflections li { margin: 4px 0; }

/* 预警区 */
.alerts {
  background: var(--alert-bg); border: 1px solid var(--alert); border-radius: 10px; padding: 14px 16px;
}
.alerts h2 { color: var(--alert); margin-bottom: 8px; }
.alert-row {
  display: grid; grid-template-columns: auto auto 1fr auto; gap: 10px; align-items: baseline;
  padding: 8px 0; border-top: 1px dashed var(--border); cursor: pointer;
}
.alert-row:first-of-type { border-top: 0; }
.alert-row:hover .alert-title { text-decoration: underline; }
.alert-company { font-weight: 600; white-space: nowrap; }

/* 公司卡片 */
.company {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px;
}
.company.has-alert { border-left: 4px solid var(--alert); }
.company-head {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer; flex-wrap: wrap;
}
.company-name { font-weight: 600; font-size: 15px; }
.tag {
  font-size: 12px; padding: 1px 8px; border-radius: 10px; background: var(--neutral-bg); color: var(--muted);
  white-space: nowrap;
}
.tag.alert { background: var(--alert-bg); color: var(--alert); font-weight: 600; }
.company-meta { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.company-body { border-top: 1px solid var(--border); padding: 12px 16px; }
.thesis {
  background: var(--neutral-bg); border-radius: 6px; padding: 8px 12px; margin-bottom: 12px; font-size: 13px;
  white-space: pre-wrap;
}

/* 时间线 */
.day { margin-bottom: 16px; }
.day-head { font-weight: 600; margin-bottom: 6px; display: flex; gap: 10px; align-items: baseline; }
.day-summary { font-weight: 400; color: var(--muted); font-size: 13px; }
.item {
  border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin-bottom: 8px;
}
.item.is-alert { background: var(--alert-bg); border-color: var(--alert); box-shadow: 0 0 0 1px var(--alert) inset; }
.item-head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.item-title { font-weight: 600; flex: 1; min-width: 200px; }
.badge { font-size: 12px; padding: 1px 8px; border-radius: 4px; font-weight: 600; white-space: nowrap; }
.badge.bull { color: var(--bull); background: var(--bull-bg); }
.badge.bear { color: var(--bear); background: var(--bear-bg); }
.badge.neutral { color: var(--muted); background: var(--neutral-bg); }
.score { font-variant-numeric: tabular-nums; font-weight: 700; }
.score.bull { color: var(--bull); } .score.bear { color: var(--bear); }
.item p { margin: 6px 0; }
.frameworks { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 6px; margin: 8px 0; }
.fw { background: var(--neutral-bg); border-radius: 6px; padding: 6px 8px; font-size: 12px; }
.fw b { margin-right: 6px; }
.sources { font-size: 12px; margin: 6px 0 0; padding-left: 18px; }
.sources a { word-break: break-all; }
details summary { cursor: pointer; color: var(--primary); font-size: 13px; }

/* 导入预览 */
dialog {
  border: 1px solid var(--border); border-radius: 12px; padding: 20px; width: min(640px, calc(100vw - 32px));
  background: var(--card); color: var(--text);
}
dialog::backdrop { background: rgba(0, 0, 0, .35); }
dialog h3 { margin-top: 0; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; }
#import-file { margin-top: 8px; border: 0; padding: 0; }
.preview { width: 100%; border-collapse: collapse; font-size: 13px; }
.preview td, .preview th { padding: 4px; border-bottom: 1px solid var(--border); text-align: left; }
.preview input, .preview select { padding: 4px 6px; }
.preview td:first-child { width: 24px; }
.preview input[type=checkbox] { width: auto; }

/* 提问助手 */
.chat {
  position: fixed; right: 0; top: 0; bottom: 0; width: min(440px, 100vw); background: var(--card);
  border-left: 1px solid var(--border); display: flex; flex-direction: column; z-index: 20;
  box-shadow: -8px 0 24px rgba(0, 0, 0, .08);
}
.chat-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.chat-body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { padding: 10px 12px; border-radius: 10px; max-width: 92%; white-space: pre-wrap; }
.msg.assistant { background: var(--neutral-bg); align-self: flex-start; }
.msg.user { background: var(--primary); color: var(--primary-text); align-self: flex-end; }
.msg.pending { opacity: .6; }
.chat-form { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--border); }

.empty { text-align: center; color: var(--muted); padding: 40px 0; }
.disclaimer { text-align: center; color: var(--muted); font-size: 12px; margin-top: 32px; }

@media (max-width: 600px) {
  .alert-row { grid-template-columns: auto 1fr; }
  .digest-row { grid-template-columns: auto 1fr; }
  .digest-row > span:last-child { grid-column: 1 / -1; }
  .company-meta { margin-left: 0; }
}

/* 后台 */
.admin-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.admin-nav a { padding: 6px 12px; border-radius: 6px; text-decoration: none; color: var(--text); }
.admin-nav a.on { background: var(--primary); color: var(--primary-text); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-bottom: 12px; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-bottom: 12px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.stat .v { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .k { color: var(--muted); font-size: 12px; }
.two-col { display: grid; grid-template-columns: 3fr 2fr; gap: 12px; }
.tbl { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.tbl th { color: var(--muted); font-weight: 500; white-space: nowrap; }
.tbl tr:last-child td { border-bottom: 0; }
.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.bad { color: var(--bull); }
.dim td { opacity: .55; }
.warn-row td { background: var(--alert-bg); }
.actions { display: flex; gap: 4px; flex-wrap: wrap; }
button.danger { color: var(--bull); border-color: var(--bull); }
.bar { height: 8px; background: var(--neutral-bg); border-radius: 4px; overflow: hidden; margin: 8px 0; }
.bar i { display: block; height: 100%; background: var(--bear); }
.bar i.warn { background: var(--bull); }
.flash { position: sticky; top: 64px; z-index: 6; background: var(--bear-bg); color: var(--bear); padding: 8px 12px; border-radius: 8px; }
.flash.error { background: var(--bull-bg); color: var(--bull); }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }